ZIP Code 64644

64644 is one of Missouri's ZIP codes, delivering to addresses in Hamilton, Caldwell County.

City: Hamilton
County: Caldwell County
State: Missouri
Prefix: 646xx

Where this code sits

64644 is part of the 646xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hamilton.

Hamilton Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 64644 delivers to without sharing its boundary.

ZIP codes nearest 64644

The ZIP codes whose reference points sit closest to 64644.
ZIP code	Distance	Delivers to
ZIP code 64649	6.7 mi	Kidder, MO
ZIP code 64650	7.7 mi	Kingston, MO
ZIP code 64625	9.9 mi	Breckenridge, MO
ZIP code 64689	12 mi	Winston, MO
ZIP code 64640	12 mi	Gallatin, MO
ZIP code 64620	12 mi	Altamont, MO
ZIP code 64637	12 mi	Cowgill, MO
ZIP code 64671	13 mi	Polo, MO

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 64644, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 64644. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.